 /* Reset & Base Styles */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: Arial, sans-serif;
      background-color: #f5f5f5;
      color: #333;
      line-height: 1.6;
    }
    .container {
      max-width: 900px;
      margin: 20px auto;
      padding: 20px;
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    h1 {
      text-align: center;
      margin-bottom: 20px;
      color: #007BFF;
    }
    h2 {
      margin-bottom: 10px;
      color: #007BFF;
    }
    .section {
      margin-bottom: 40px;
    }
    .stats {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-around;
    }
    .card {
      flex: 1 1 200px;
      margin: 10px;
      padding: 20px;
      background-color: #e9f2f9;
      border-radius: 5px;
      text-align: center;
    }
    .card h3 {
      margin-bottom: 10px;
      font-size: 1.1em;
      color: #333;
    }
    .card p {
      font-size: 1.3em;
      color: #555;
    }
    .dropdown {
      text-align: center;
      margin-bottom: 20px;
    }
    select {
      padding: 8px;
      font-size: 1em;
    }
    .btn {
      display: inline-block;
      padding: 8px 16px;
      background-color: #007BFF;
      color: #fff;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      margin: 5px;
      transition: background-color 0.2s ease;
    }
    .btn:hover {
      background-color: #0056b3;
    }
    /* Chart Canvas Styles */
    #globalChartContainer {
      max-width: 700px;
      margin: 20px auto;
    }
    #globalChart {
      width: 100%;
      height: 400px;
    }
